MATH_FunctionNode.h

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#ifndef MATH_FunctionNode_H
#define MATH_FunctionNode_H

#include "MATH_LeafExpression.h"

#include "MATH_RootExpression.h"

DEFINE_SPTR(MATH_FunctionNode);
DEFINE_SVPTR(MATH_FunctionNode);
class MATH_FunctionNode : public MATH_LeafExpression {
    SP_OBJECT(MATH_FunctionNode);
    
    // ATTRIBUTES
    
private:
    //ASSOCIATIONS
    SV::MATH_RootExpression mArguments;
    
protected: 
    // METHODS
  
    // CONSTRUCTORS 
  
    MATH_FunctionNode(void);
  
  
  
    // DESTRUCTORS 
  
    
    virtual ~MATH_FunctionNode(void);   

public:

    // new
    virtual SP::MATH_FunctionNode newInstance() const=0;
    
    // SET
    
  
    inline void addArgument(SP::MATH_RootExpression arg) {
        mArguments.add(arg);
    }

    // GET
    virtual tBoolean isEnvironmentVariableNode() const {
        return false;
    }


    
    inline int getArgumentsNumber() const {
        return mArguments.getSize();
    }
    inline SPC::MATH_RootExpression getArgument(const int& index) const {
       
        if (index>=mArguments.getSize()) {
            SPC::MATH_RootExpression nullArg;
            return nullArg;
        }
        return mArguments[index];
    }
    inline SP::MATH_RootExpression getArgument(const int& index)  {  
        if (index>=mArguments.getSize()) {
            SP::MATH_RootExpression nullArg;
            return nullArg;
        }
        return mArguments[index];
    }
    


    // OTHERS methods
public:
    virtual MATH_ChildExpression*  insertInTree(MATH_Expression* tree,MATH_Environment& symbols,tString& expr);
    
    virtual int evaluate(const tFlag& action,MATH_Environment& symbols,MATH_Variable& var) const=0;
    
    tString readArguments(const tString& formula,MATH_Environment& symbols);
   
    
public:
    
    
    virtual tString toString() const;
};

#endif